Emission Line Imaging Spectroscopy for Diagnosing of Solar Outer Atmospheres

Abstract

The Extreme Ultraviolet Imaging Spectrometer on board the Japanese Sun Observing Satellite “Hinode” realizes the highest sensitivity ever achieved in the two EUV wavelengths of 17-21 nm and 25-29 nm. EIS will be able to provide the detailed diagnostic information on solar corona and transition region. A new tool of timedependent collisonal-radiative model will be developed to analyze the data taken by this EIS instrument, and to diagnose temperatures and densities of those plasmas in the outer atmospheres of the Sun.